EP 1754020 A2 20070221 - SYSTEM, METHOD, DEVICE AND COMPUTER PROGRAM FOR IMPROVING THE READABILITY OF AN ELECTRONIC COMPASS
Title (en)
SYSTEM, METHOD, DEVICE AND COMPUTER PROGRAM FOR IMPROVING THE READABILITY OF AN ELECTRONIC COMPASS
Title (de)
SYSTEM, VERFAHREN, EINRICHTUNG UND COMPUTERPROGRAMM ZUR VERBESSERUNG DER LESBARKEIT EINES ELEKTRONISCHEN KOMPASSES
Title (fr)
SYSTEME, PROCEDE, DISPOSITIF ET PROGRAMME INFORMATIQUE SERVANT A AMELIORER LA LISIBILITE D'UNE BOUSSOLE ELECTRONIQUE
Publication
Application
Priority
- IB 2005001442 W 20050527
- US 85620604 A 20040527
Abstract (en)
[origin: US2005262713A1] A system, method, device and computer code product is disclosed for stabilizing compass heading under tilt error conditions from an uncorrected electronic compass reading. Exemplary embodiments include a stabilizing filter configured to filter out tilt errors incorporated into the uncorrected electronic compass reading and a filter adaptation module configured to control the stabilizing filter response based on the signal radius of the uncorrected compass reading and a pre-calibrated ideal radius for the compass. The filter adaptation module can be configured to calculate a filter response parameter as a function of the relative difference between the signal radius of the uncorrected compass reading and the pre-calibrated ideal radius. The filter response parameter can be passed to the stabilizing filter for controlling its operation.
IPC 8 full level
G01C 17/38 (2006.01); G01C 17/28 (2006.01)
CPC (source: EP KR US)
G01C 17/28 (2013.01 - EP KR US); G01C 17/38 (2013.01 - KR)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2005262713 A1 20051201; US 6964107 B1 20051115; AT E457445 T1 20100215; CN 1989392 A 20070627; CN 1989392 B 20101215; DE 602005019289 D1 20100325; EP 1754020 A2 20070221; EP 1754020 B1 20100210; KR 100895988 B1 20090507; KR 20070024656 A 20070302; WO 2005115079 A2 20051208; WO 2005115079 A3 20060511
DOCDB simple family (application)
US 85620604 A 20040527; AT 05750405 T 20050527; CN 200580025021 A 20050527; DE 602005019289 T 20050527; EP 05750405 A 20050527; IB 2005001442 W 20050527; KR 20067027419 A 20061227